IBM Z commands premium pricing, yet G2 reviewers overwhelmingly rate it 4.0 to 5.0 stars, signaling strong value for organizations that can afford it. The recurring theme across G2 reviews is a clear trade-off: exceptional reliability, near-zero downtime, pervasive encryption, and the ability to process billions of transactions daily justify the cost for large financial institutions, banks, and insurers. However, G2 reviewers consistently flag hardware, software licensing, and skilled staffing costs as significant barriers, with multiple reviewers noting that only large enterprises can realistically absorb IBM Z's pricing. One mid-market financial services reviewer confirmed cost concerns were severe enough to prompt migration away from IBM Z entirely.